• 文献标题:   Phonon wave interference in graphene and boron nitride superlattice
  • 文献类型:   Article
  • 作  者:   CHEN XK, XIE ZX, ZHOU WX, TANG LM, CHEN KQ
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS LETTERS
  • ISSN:   0003-6951 EI 1077-3118
  • 通讯作者地址:   Hunan Univ
  • 被引频次:   51
  • DOI:   10.1063/1.4958688
  • 出版年:   2016

▎ 摘  要

The thermal transport properties of the graphene and boron nitride superlattice (CBNSL) are investigated via nonequilibrium molecular dynamics simulations. The simulation results show that a minimum lattice thermal conductivity can be achieved by changing the period length of the superlattice. Additionally, it is found that the period length at the minimum shifts to lower values at higher temperatures, and that the depth of the minimum increases with decreasing temperature. In particular, at 200 K, the thermal conductivities of CBNSLs with certain specific period lengths are nearly equal to the corresponding values at 300 K. A detailed analysis of the phonon spectra shows that this anomalous thermal conductivity behavior is a result of strong phonon wave interference. These observations indicate a promising strategy for manipulation of thermal transport in superlattices. Published by AIP Publishing.